Lithium-Ion Battery performance improved with new process
Lithium-ion batteries are already recognized as energy storage champs. Their ability to store electricity for relatively long periods of time has made them the battery of choice for everything from cell phones to hybrid electric vehicles. Now, researches at Tokyo University of Agriculture and Technology have discovered a way to even further increase lithium-ion battery capacity.
Rechargeable battery electrodes are made out of carbon. Using ultra-centrifugal processing technology, the researchers added lithium iron phosphate (LiFePO4) to the anode (positive electrode) carbon nanofibers and hollow carbon. They then added tin oxide (SnO2) to the carbon in the cathode (negative electrode). The result was increased battery capacity. The research team also tried lithium cobalt oxide (LiCoO2) in the anode with excellent results. The cell completed 800 charge-discharge cycles without capacity degradation.
The research is important because it shows that it may be possible to apply the process using a variety of materials within the electrode carbon. If so, the lithium-ion battery technology would be given a tremendous boost as it would increase the practical applications of an already impressive product.